5:50PM Saturday (original) / 7:32AM Sunday (edit)
The weather pattern is about to throw itself into chaos according to most reliable information. What we will see out of this for now is not a great deal of change from the type of weather we’ve been having. Frequent precipitation events, mild temperatures overall, and brief shots of cold weather, with snow threats only taking place when these cold shots and precipitation events collide (and that is not often). This situation (chaotic transitional pattern) will be in place for the foreseeable future.
The summary of events upcoming has not really changed much, and looking from now into Thanksgiving Weekend, I see these primary weather makers:
Sunday: High pressure offshore, gusty breeze from the southwest but very mild during the day, and a cold front coming through at night with little fanfare other than a gusty, shifting breeze and lots of clouds.
Monday: High pressure builds north of the region as the front hangs up to the south, meaning cooler temperatures and filtered to limited sun.
Tuesday: High pressure holds to the north, front slides northward, ripple of low pressure moving along it, south of the area, means less sun and a slight threat of rain.
Wednesday: A more organized low pressure area moves northeastward across southern New England with a period of rain during the day, and a few rain/snow showers at night.
Thursday: Thanksgiving Day will show improvement as low pressure moves away to the east northeast and high pressure builds toward the region from the west, but expect wind and chilly air, along with clouds to start, then increasing sun.
Friday: High pressure builds in – a bright day, cold start, milder finish.
Saturday: High pressure in control – fantastic late November day, dry and mild.
Forecast details for the Boston Area…
SUNDAY: Mostly sunny to partly cloudy. High 60-65. Wind SW 10-20 MPH and gusty.
SUNDAY NIGHT: Mostly cloudy. Low 35-40. Wind SW 10-20 MPH shifting to NW.
MONDAY: Partly sunny. High 45-50. Wind NE 5-15 MPH.
TUESDAY: Mostly cloudy. Slight chance of light rain. Low 35. High 47.
WEDNESDAY: Overcast. Rain morning. Rain/snow showers night. Low 35. High 44.
THURSDAY: Clearing. Low 34. High 44.
FRIDAY: Mostly sunny. Low 31. High 51.
SATURDAY: Mostly sunny. Low 33. High 56.